Trolley-wire crossing



(No Model.)

J. C. KINNEY.

TROLLEY WIRE CROSSING. No. 550,683. Patented Dec. 3, 1895.

AN DREW B.GRMIAM PPIUYOLITHQWASHINETDNlhC,

UNITED STATES PATENT EEicE.

JOHN C. KINNEY, OF SAN ANTONIO, TEXAS.

TROLLEY-WIRE CROSSING.

SPECIFICATION forming part of Letters Patent No. 550,683, dated December 3, 1895..

Application filed April 17, 1 8 9 5.

To all whom it may concern:

Be it known that I, JOHN C. KINNEY, a citizen of the United States, residing at San Antonio, in the county of Bexar and State of Texas, have invented a new and useful Improvement in Trolley- Wire Crossings, of which the following is a specification.

My invention relates to an improvement in trolley-wire crossings in which four separate brackets or arms, each carrying the trolley- Wire, are connected in pairs by bolts to a core of insulating material; and the object of my invention is to produce a trolley-wire crossing in which the bottom part of the cross on which the trolley runs is on a level with the trolleywire, whereby all hinderances to the trolley are prevented. I attain this object by the device illustrated in the accompanying drawings, in which- Figure 1 is a bottom view of the entire crossing. Fig. 2 is a side view showing three brackets or arms. Fig. 3 is a top view of one separate bracket or arm, and Fig. i is a side view of the core or insulator.

Similar letters refer to similar parts throughout the several views.

A A A A are four triangular brackets, of brass, having on the bottom side half-way from the exterior to the center end a groove 1 I and on the end of the groove a hole FF, which hole extends from the bottom part through the brace of the bracket. The groove I and the hole F are for the reception and securely fixing of the trolley-wire E to the bracket, as shown by the drawings. The other half part of the bottom side of the arm is so formed that the cross-section represents the erial No. 546,097. (No model.)

semicircle of the trolley-wire and forms with the same a continuous smooth line.

B is a block or core, of vulcanized fiber or other insulating material, the bottom part of which forms a cone with rounded end 0 of the size of the trolley-wire. The block or core is square for crossings at a right angle, or triangular for switches, or any other shape as the crossing requires. Two holes l-I go through the block for fixing, by bolts G, the brackets or arms A to the block or core B. These bolts make at the same time connection for the electric current to each pair of brackets or arms. Above this block or core B is another block D of insulating material and of the same shape, having two independent bolt-holes for fixing, by bolts G, the brackets or arms A to the same. This block is for strengthening the cross.

Having now fully described my invention, what I claim, and desire to secure by Letters Patent, is

In a trolley-wire crossing the separate triangular shaped brackets, or arms A, bolted to an insulating block, or core B, with a round ended cone at bottom part, of the same size as the trolley-wire, and having two independent bolt holes H, for bolting the brackets or arms, in pairs, insulated from each other, to the insulating block or core, thus givinga continuous current without interfering with the cross line, all substantially as described.

JOHN G. KINNEY. WVitnesses:

R. S. KINNEY, O. O. KINNEY. 

